MiR-490-5p functions as tumor suppressor in childhood neuroblastoma by targeting MYEOV

Human Cell
Jinfeng WangXiang Li

Abstract

Neuroblastoma (NB) is the most common extracranial solid tumor derived from neural crest in children. Recently, the role of miRNA has been studied extensively in the development of NB. Here, we investigated the clinical significance of microRNA-490-5p (miR-490-5p) in NB. A total of 72 pairs of NB tumor tissues and matched adjacent normal nerve tissues were collected from NB patients. The expression of miR-490-5p was significantly down-regulated in NB tissues and cell lines using quantitative real-time PCR. Using Pearson Chi-square test and Kaplan-Meier analysis, we found that significantly decreased miR-490-5p levels were correlated with INSS stage, lymph-node metastasis, and poor survival prognosis in NB patients. MiR-490-5p overexpression significantly suppressed cell proliferation migration, invasion, and induced cell cycle G0/G1 arrest and cell apoptosis in NB cell lines (SH-SY5Y and SK-N-SH) using CCK-8, flow cytometry, and transwell assays. Mechanistically, MYEOV was confirmed as a target gene of miR-490-5p by luciferase reporter assay. Furthermore, MYEOV knockdown imitated, while overexpression rescued the changes in the biological features of miR-490-5p on NB cells. Our results demonstrated for the first time that miR-4...Continue Reading

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Citations

Oct 24, 2020·Journal of Cellular Physiology·Omkar Suhas Vinchure, Ritu Kulshreshtha
Mar 16, 2021·Frontiers in Oncology·Omidvar RezaeiSoudeh Ghafouri-Fard

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Methods Mentioned

BETA
PCR
transfection
flow cytometry

Software Mentioned

pro plus
TargetScan
FlowJo
Image
SPSS

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